P M Spielmann1, S Majumdar, R P Morton. 1. University Department of Otolaryngology, Ninewells Hospital, Dundee, UK. patrickspielmann@nhs.net
Abstract
BACKGROUND: Early glottic carcinoma can be managed by radiotherapy and transoral laser microsurgery with similar control and survival rates. The functional and quality of life outcomes of these interventions are therefore important to guide management. OBJECTIVE OF REVIEW: To compare the different treatment modalities for early glottic carcinoma with respect to quality of life, post-treatment voice character and swallowing outcomes. TYPE OF REVIEW: A systematic review of the literature with defined search strategy. SEARCH STRATEGY: Searches of EBM databases, and literature databases using key words: glotti*, laryn*, neoplasm, radiotherapy and laser surgery from 1970 to November 2009. Articles were screened for relevance using pre-determined inclusion and exclusion criteria. EVALUATION METHOD: Articles reviewed by authors and data compiled in tables for analysis. RESULTS: No randomised controlled trials were identified. There were 15 studies reporting vocal outcomes, and perception of voice disability was measured in eight studies; numbers were low in all the papers. Cumulatively, results for 880 patients were included, 448 had trans-oral laser microsurgery and 442 had radiotherapy. For vocal outcomes, 12 studies found no significant difference between radiotherapy and laser surgery, three reported superior outcomes for radiotherapy, whereas for the perception of voice disability, five reported no difference between treatment groups, while the remaining three reported conflicting results. Nine studies reported quality of life outcomes; seven of these reported no difference between the treatment groups in overall scores although some report differences in subsets of questions. CONCLUSIONS: The evidence base to date demonstrates comparable vocal and quality of life outcomes for radiotherapy and transoral laser surgery for early glottic carcinoma. There is a need for consensus on which measures of vocal quality and life satisfaction to be used in research trials to allow comparison between studies.
BACKGROUND: Early glottic carcinoma can be managed by radiotherapy and transoral laser microsurgery with similar control and survival rates. The functional and quality of life outcomes of these interventions are therefore important to guide management. OBJECTIVE OF REVIEW: To compare the different treatment modalities for early glottic carcinoma with respect to quality of life, post-treatment voice character and swallowing outcomes. TYPE OF REVIEW: A systematic review of the literature with defined search strategy. SEARCH STRATEGY: Searches of EBM databases, and literature databases using key words: glotti*, laryn*, neoplasm, radiotherapy and laser surgery from 1970 to November 2009. Articles were screened for relevance using pre-determined inclusion and exclusion criteria. EVALUATION METHOD: Articles reviewed by authors and data compiled in tables for analysis. RESULTS: No randomised controlled trials were identified. There were 15 studies reporting vocal outcomes, and perception of voice disability was measured in eight studies; numbers were low in all the papers. Cumulatively, results for 880 patients were included, 448 had trans-oral laser microsurgery and 442 had radiotherapy. For vocal outcomes, 12 studies found no significant difference between radiotherapy and laser surgery, three reported superior outcomes for radiotherapy, whereas for the perception of voice disability, five reported no difference between treatment groups, while the remaining three reported conflicting results. Nine studies reported quality of life outcomes; seven of these reported no difference between the treatment groups in overall scores although some report differences in subsets of questions. CONCLUSIONS: The evidence base to date demonstrates comparable vocal and quality of life outcomes for radiotherapy and transoral laser surgery for early glottic carcinoma. There is a need for consensus on which measures of vocal quality and life satisfaction to be used in research trials to allow comparison between studies.
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